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大谷主人公の野球漫画、もうこの後やれることが…
→ “A baseball manga with Ohtani as the protagonist... there's nothing left to do after this...”
大谷 Ohtani = Ohtani (proper noun, name of the baseball player)
主人公 shujinkō¹ = protagonist (n.)
主 shu = main / master
人公 jin = person / human
の no = (particle) indicating possession or attribution
野球 yakyū¹ = baseball (n.)
野 ya = field / wild
球 kyū¹ = ball
漫画 manga = comic / cartoon (n.)
漫 man = to spread / diffuse
画 ga = picture / drawing
、 = (punctuation) comma
もう mō¹ = already / now that...
この kono = this (demonstrative adjective)
後 ato = after / later
やれる yareru = can do / able to do (v., potential form of 'suru')
こと koto = thing / matter (noun)
が ga = (particle) subject marker / emphasis
… = (punctuation) ellipsis
